Algebraic deformations arising from orbifolds with discrete torsion
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We develop methods for computing Hochschild cohomology groups and deformations of crossed product rings. We use these methods to find deformations of a ring associated to a particular orbifold with discrete torsion, and give a presentation of the center of the resulting deformed ring. This connects with earlier calculations by Vafa and Witten of chiral numbers and deformations of a similar orbifold. 2003 Elsevier B.V. All rights reserved.
Journal of Pure and Applied Algebra
author list (cited authors)
Cldraru, A., Giaquinto, A., & Witherspoon, S.
complete list of authors
Căldăraru, Andrei||Giaquinto, Anthony||Witherspoon, Sarah